Pro Sites Fatal Error on line 219 of pricing.php

Have this error on my select-plan page:

Fatal error: Maximum execution time of 30 seconds exceeded in /home/makeaweb/public_html/wp-content/plugins/pro-sites/pro-sites-files/lib/ProSites/Model/Pricing.php on line 219

Tried troubleshooting by: Changing to a WPMUDEV theme, disabling all plugins except prosites.

Just updated to latest Pro Sites, but I believe this error is due to the levels saving incorrectly (as line 219 is where the levels are fetched). I had 3 levels, removed one, and now have this error. When I add another level (making it 3 total again) the page loads fine.

How do I "clear things out" so this is resolved?